Practice - Alleles and Gene Expression
Practice Questions
Test your understanding with targeted questions
What is an allele?
💡 Hint: Think about different types of a trait.
What does it mean if an allele is dominant?
💡 Hint: What happens when you have a tall plant gene?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What are alleles?
💡 Hint: Think of different versions of the same gene.
True or False: Recessive alleles are always expressed in the phenotype.
💡 Hint: What condition do they need to show?
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A plant has a genotype TtRr, where T is tall, t is short, R is red flower color, and r is white flower color. What are the possible phenotypes of this plant?
💡 Hint: Think about how many combinations of height and color you can create!
If a homozygous black guinea pig (B) is crossed with a homozygous white guinea pig (b), which exhibits codominance, what would the offspring look like?
💡 Hint: Imagine the colors mixing together on a guinea pig!
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Reference links
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